##-
# Author: Brian Tiffin
# Dedicated to the public domain
#
# Date: August 2016
# Modified: 2016-10-03/23:13-0400
##+
#
# preproc-ifdef, demonstrate $ifdef preprocessor directive
#
procedure main()
$ifdef _POSIX
    write("POSIX available, pid is ", getpid())
$else
    write("No POSIX features with this ", &version)
$endif
end